Adjustable roller knee pad



FIG. 1 is an overall isometric view of an assembled adjustable roller knee pad;

FIG. 2 is a cross-sectional view taken along the line 2--2 of FIG. 1;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a back elevational view thereof. 

The ornamental design for an adjustable roller knee pad, as shown and described. 